Thank you David and haaber for your help, it is much appreciated!
On 4/18/21 11:23 AM, David Hobach wrote: > Use `qvm-volume revert` to go back to previous snapshots for a VM. Oh, I saw that page [1] at some point, but didn't try it before. Thanks for the reminder. [dom0] qvm-volume info vmname:private > Available revisions (for revert): old looking good! however: [dom0] qvm-volume revert vmname:private old > Got empty response from qubesd. See journalctl in dom0 for details. Journal says: > unhandled exception while calling src=b' dom0' meth=b' \ > admin.vm.volume.Revert' dest=b'vmname' arg=b' private' \ > len(untrusted_payload)=3 [..] > NotImplementedError: Volume Filevolume has revert() not implemented Both the revert command as well as the entry in journal are the same no matter if I include or omit 'old' in the revert command. On 4/18/21 11:25 AM, haaber wrote: > These are real disc-image files! There is a filesystem, but it is not > in sector 1 :) Interesting and promising! After way too long I figured out that the regular 'private.img' seems to contain its filesystem beginning right at sector 1, 'private-cow.img.old' apparently as well, and 'private-cow.img' at sector 560. Testdisk could find them and correctly determine they are ext4 filesystems. But no matter if I loop-mount with offset, or deep-scan with testdisk, or fsck, I can't find any data on the 'cow' images. The regular 'private.img' is no problem here. The most I could get is > /dev/xvdbc contains a DM_snapshot_cow file system from fsck when letting it work on a rw copy of 'private-cow.img'. Honestly, I don't understand why the last step fails so hard, after all the files aren't corrupted, filesystems are detected, and the data should just pop out by now? I would be very grateful for hints :-) Thank you, Stickstoff [1] https://www.qubes-os.org/doc/volume-backup-revert -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/a8933a83-724d-69b4-7044-91b1b6f5f553%40posteo.de.
